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Securing iRedMail with Fail2ban: Beyond the Default Configuration.

Securing iRedMail with Fail2ban: Beyond the Default Configuration.

May 22, 2026 | Advanced Linux Scripting, Learn Linux in practical way

Fail2ban is installed but are you getting alerts? Learn how to configure fail2ban for iRedMail, fix broken jails, and set up real-time notifications via email and Telegram. Your iRedMail server is being attacked. Right now. Open your mail logs and you’ll see a...
Why Your iRedMail Emails Go to Spam (or Never Arrive) and How to Fix It!

Why Your iRedMail Emails Go to Spam (or Never Arrive) and How to Fix It!

May 22, 2026 | Advanced Linux Scripting, Learn Linux in practical way

Emails from your iRedMail server going to Gmail spam folder? Learn how to set up SPF, DKIM, DMARC, PTR records, and warm up your IP address for perfect deliverability. You’ve set up iRedMail. SSL certificates are working. Authentication is perfect. But...
Apple Mail Cannot Connect to iRedMail? Here’s the Fix

Apple Mail Cannot Connect to iRedMail? Here’s the Fix

May 22, 2026 | Advanced Linux Scripting, Learn Linux in practical way

Apple Mail throwing “Unable to verify account name or password” errors with your iRedMail server? Learn the correct settings for IMAP, SMTP, SSL, and authentication that actually work. Suggested Featured Image Prompt: You’ve followed every tutorial....
Firewalld Says Ports Are Open But Connections Fail: The SMTP Port Mystery

Firewalld Says Ports Are Open But Connections Fail: The SMTP Port Mystery

May 22, 2026 | Uncategorized

You’ve opened ports 465 and 587 in firewalld, but connections still fail. Learn why rich rules, zones, and service definitions matter. Fix your email server firewall once and for all. You’ve run the command. You’ve double-checked it twice: sudo...
Remove ‘Untrusted Certificate’ Errors in Apple Mail, Outlook, and Thunderbird for iRedMail

Remove ‘Untrusted Certificate’ Errors in Apple Mail, Outlook, and Thunderbird for iRedMail

May 22, 2026 | Advanced Linux Scripting, Learn Linux in practical way

Tired of “untrusted certificate” warnings in your email client? Replace iRedMail’s self-signed SSL certificates with free Let’s Encrypt certificates. Step-by-step guide for Rocky Linux, Ubuntu, and more. You’ve just set up iRedMail and...
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